Johnstown, Pennsylvania, United States Climate Change Severity

62
Very High
The current climate change severity in Johnstown is Very High, with a 21.1% worsening in the climate score compared to last 16 years. This suggests deteriorating conditions, with increasing negative impacts on weather patterns and environmental conditions.
Data: Jan. to Jan. (Historical Vs 2026) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C (c)

Johnstown Weather Condition Changes (Historic Vs 2026)

2026
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Historic
2026

Over the past 16 year(s), Johnstown temperature has changed by around +69.6%, and has experienced notable climate changes.

Sunny
Cloudy
Rainy
Snowy
Misty
Data: Jan. to Jan. (Historical Vs 2026)

Comparison of Weather Condition (Historic Vs 2026)

HistoricDays

Year 2026Days

Change

sunnySunny
10
-100%
cloudyCloudy
42
-50%
rainyRainy
134
-69.2%
snowySnowy
44
0%
mistyMisty
01
100%

Disclaimer: Other weather conditions not shown may affect the total day count.

Climate Change Indicators:

Over the past 16 years, Johnstown has experienced measurable shifts in key climate parameters, contributing to the current severity score of 62 (within the Very High severity category). This suggests worsening climate conditions from the previous years. Here’s a breakdown of the specific changes observed:

Severity Score

62/100

Very High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2025, Johnstown experienced significant changes:

Temperature change of

-2.3 °C

Variation in annual rainfall

+110.3 %

Change in average humidity

-10.2 %

PM2.5 levels surged by

+0.9 %

Heatwave changed by

-1.06 day(s)

Coldwave changed by

-0.6 day(s)

Wind speeds changed by

+1.1 km/h

These indicators show a dramatic increase in volatility and worsening conditions. Johnstown's Very High severity status requires urgent and immediate adaptation and mitigation strategies, particularly focused on managing extreme weather events, improving air quality, and ensuring water resources are adequate for the population.

Check how we calculate Climate Change Severity
Based on data from Jan. to Jan.

Johnstown Weather Forecast 30 Days (February - March 2026)
Johnstown, Pennsylvania, United States

Condition
Temperature IconTemperature
Humidity IconHumi.
Wind IconWind Speed
Sat. 7, Feb.
light freezing rainLight freezing rain
Temperature Icon-13°/-16°
Humidity Icon72%
Wind Icon30km/h
Sun. 8, Feb.
partly cloudyPartly Cloudy
Temperature Icon-10°/-26°
Humidity Icon77%
Wind Icon21km/h
Mon. 9, Feb.
cloudyCloudy
Temperature Icon-2°/-21°
Humidity Icon76%
Wind Icon5km/h
Tue. 10, Feb.
moderate snowModerate snow
Temperature Icon4°/-4°
Humidity Icon84%
Wind Icon23km/h
Wed. 11, Feb.
light snowLight snow
Temperature Icon-1°/-6°
Humidity Icon92%
Wind Icon28km/h
Thu. 12, Feb.
light snowLight snow
Temperature Icon-2°/-12°
Humidity Icon93%
Wind Icon16km/h
Fri. 13, Feb.
freezing fogFreezing fog
Temperature Icon-6°/-16°
Humidity Icon94%
Wind Icon16km/h
Sat. 14, Feb.
light freezing rainLight freezing rain
Temperature Icon-2°/-18°
Humidity Icon93%
Wind Icon10km/h
Sun. 15, Feb.
sunnySunny
Temperature Icon2°/-14°
Humidity Icon93%
Wind Icon6km/h
Mon. 16, Feb.
partly cloudyPartly Cloudy
Temperature Icon2°/-9°
Humidity Icon94%
Wind Icon15km/h
Tue. 17, Feb.
mistMist
Temperature Icon5°/-4°
Humidity Icon97%
Wind Icon13km/h
Wed. 18, Feb.
patchy rain possiblePatchy rain nearby
Temperature Icon13°/7°
Humidity Icon87%
Wind Icon27km/h
Thu. 19, Feb.
patchy rain possiblePatchy rain nearby
Temperature Icon7°/2°
Humidity Icon91%
Wind Icon27km/h
Fri. 20, Feb.
light freezing rainLight freezing rain
Temperature Icon5°/-4°
Humidity Icon78%
Wind Icon24km/h
Sat. 21, Feb.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon5°/-5°
Humidity Icon83%
Wind Icon21km/h
Sun. 22, Feb.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon4°/-3°
Humidity Icon85%
Wind Icon21km/h
Mon. 23, Feb.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon6°/-3°
Humidity Icon87%
Wind Icon19km/h
Tue. 24, Feb.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon6°/-4°
Humidity Icon85%
Wind Icon23km/h
Wed. 25, Feb.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon4°/-5°
Humidity Icon82%
Wind Icon25km/h
Thu. 26, Feb.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon3°/-5°
Humidity Icon82%
Wind Icon21km/h
Fri. 27, Feb.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon5°/-5°
Humidity Icon84%
Wind Icon24km/h
Sat. 28, Feb.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon5°/-5°
Humidity Icon83%
Wind Icon22km/h
Sun. 1, Mar.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon7°/-4°
Humidity Icon81%
Wind Icon23km/h
Mon. 2, Mar.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon3°/-5°
Humidity Icon80%
Wind Icon24km/h
Tue. 3, Mar.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon3°/-6°
Humidity Icon79%
Wind Icon22km/h
Wed. 4, Mar.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon3°/-6°
Humidity Icon78%
Wind Icon19km/h
Thu. 5, Mar.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon5°/-6°
Humidity Icon76%
Wind Icon19km/h
Fri. 6, Mar.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon5°/-5°
Humidity Icon84%
Wind Icon20km/h
Sat. 7, Mar.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon7°/-3°
Humidity Icon83%
Wind Icon22km/h
Sun. 8, Mar.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon7°/-2°
Humidity Icon81%
Wind Icon23km/h
Mon. 9, Mar.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon8°/-1°
Humidity Icon82%
Wind Icon23km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onWed. 18, Feb.

12.8°C

Low will be onSun. 8, Feb.

-25.7°C

HumidityHumidity

High will be onTue. 17, Feb.

97%

Low will be onSat. 7, Feb.

72%

Wind SpeedWind Speed

High will be onSat. 7, Feb.

29.9km/h

Low will be onMon. 9, Feb.

5.4km/h

PrecipitationPrecipitation

High will be onSun. 1, Mar.

6.5mm

Low will be onMon. 16, Feb.

0.02mm

Ultraviolet IndexUV

High will be onSun. 15, Feb.

2

Low will be onThu. 12, Feb.

1

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